зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
2.9 KiB
C++
107 строки
2.9 KiB
C++
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/*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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* The Initial Developer of the Original Code is Sun Microsystems,
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* Inc. Portions created by Sun are Copyright (C) 1999 Sun Microsystems,
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* Inc. All Rights Reserved.
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*/
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#include "ByteRanges.h"
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jfieldID ByteRanges::offsetFID = NULL;
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jfieldID ByteRanges::lengthFID = NULL;
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jfieldID ByteRanges::currentFID = NULL;
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nsByteRange* ByteRanges::GetByteRanges(JNIEnv *env, jobject object) {
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if (!currentFID) {
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Initialize(env);
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if (!currentFID) {
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return NULL;
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}
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}
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jint current = 0; //curent is the last one, sorry for this name :)
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current = env->GetIntField(object,currentFID);
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if (env->ExceptionOccurred()) {
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env->ExceptionDescribe();
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return NULL;
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}
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if (!current) { //empty ranges
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return NULL;
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}
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jintArray joffset = NULL;
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joffset = (jintArray)env->GetObjectField(object,offsetFID);
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if (!joffset) {
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env->ExceptionDescribe();
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return NULL;
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}
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jintArray jlength = NULL;
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jlength = (jintArray)env->GetObjectField(object,lengthFID);
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if (!jlength) {
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env->ExceptionDescribe();
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return NULL;
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}
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jint *offset = NULL;
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jint *length = NULL;
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offset = env->GetIntArrayElements(joffset,NULL);
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if(!offset) {
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env->ExceptionDescribe();
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return NULL;
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}
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length = env->GetIntArrayElements(joffset,NULL);
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if(!length) {
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env->ExceptionDescribe();
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return NULL;
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}
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nsByteRange *res = (nsByteRange*)malloc(sizeof(nsByteRange)*current);
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if(!res) {
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env->ReleaseIntArrayElements(joffset,offset,0);
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env->ReleaseIntArrayElements(jlength,length,0);
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return NULL;
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}
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for (int i = 0;i<current;i++) {
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res[i].offset = offset[i];
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res[i].length = length[i];
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res[i].next = &res[i+1];
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}
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res[i].next = NULL;
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env->ReleaseIntArrayElements(joffset,offset,0);
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env->ReleaseIntArrayElements(jlength,length,0);
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return res;
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}
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void ByteRanges::FreeByteRanges(nsByteRange * ranges) {
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free(ranges);
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}
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void ByteRanges::Initialize(JNIEnv *env) {
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jclass clazz = env->FindClass("org/mozilla/pluglet/mozilla/ByteRangesImpl");
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if(!clazz) {
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env->ExceptionDescribe();
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return;
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}
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offsetFID = env->GetFieldID(clazz,"offset","[I");
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if(!offsetFID) {
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env->ExceptionDescribe();
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return;
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}
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lengthFID = env->GetFieldID(clazz,"length","[I");
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if(!lengthFID) {
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env->ExceptionDescribe();
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return;
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}
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currentFID = env->GetFieldID(clazz,"current","I");
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if(!currentFID) {
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env->ExceptionDescribe();
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return;
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}
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}
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